<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="content-type" content="text/html; charset=ISO-8859-1" />
<title>AbstractHistoryManager xref</title>
<link type="text/css" rel="stylesheet" href="../../../../../stylesheet.css" />
</head>
<body>
<div id="overview"><a href="../../../../../../apidocs/com/totsp/gwittir/client/flow/AbstractHistoryManager.html">View Javadoc</a></div><pre>

<a name="1" href="#1">1</a>   <em class="jxr_comment">/*</em>
<a name="2" href="#2">2</a>   <em class="jxr_comment"> * AbstractHistoryManager.java</em>
<a name="3" href="#3">3</a>   <em class="jxr_comment"> *</em>
<a name="4" href="#4">4</a>   <em class="jxr_comment"> * Created on June 27, 2007, 11:44 AM</em>
<a name="5" href="#5">5</a>   <em class="jxr_comment"> *</em>
<a name="6" href="#6">6</a>   <em class="jxr_comment"> * To change this template, choose Tools | Template Manager</em>
<a name="7" href="#7">7</a>   <em class="jxr_comment"> * and open the template in the editor.</em>
<a name="8" href="#8">8</a>   <em class="jxr_comment"> */</em>
<a name="9" href="#9">9</a>   <strong class="jxr_keyword">package</strong> com.totsp.gwittir.client.flow;
<a name="10" href="#10">10</a>  
<a name="11" href="#11">11</a>  <strong class="jxr_keyword">import</strong> com.google.gwt.user.client.History;
<a name="12" href="#12">12</a>  
<a name="13" href="#13">13</a>  <strong class="jxr_keyword">import</strong> java.util.ArrayList;
<a name="14" href="#14">14</a>  <strong class="jxr_keyword">import</strong> java.util.HashMap;
<a name="15" href="#15">15</a>  <strong class="jxr_keyword">import</strong> java.util.Iterator;
<a name="16" href="#16">16</a>  <strong class="jxr_keyword">import</strong> java.util.List;
<a name="17" href="#17">17</a>  <strong class="jxr_keyword">import</strong> java.util.Map;
<a name="18" href="#18">18</a>  <strong class="jxr_keyword">import</strong> java.util.StringTokenizer;
<a name="19" href="#19">19</a>  
<a name="20" href="#20">20</a>  
<a name="21" href="#21">21</a>  <em class="jxr_javadoccomment">/**</em>
<a name="22" href="#22">22</a>  <em class="jxr_javadoccomment"> *</em>
<a name="23" href="#23">23</a>  <em class="jxr_javadoccomment"> * @author &lt;a href="<a href="mailto:cooper@screaming-penguin.com" target="alexandria_uri">mailto:cooper@screaming-penguin.com</a>"&gt;Robert "kebernet" Cooper&lt;/a&gt;</em>
<a name="24" href="#24">24</a>  <em class="jxr_javadoccomment"> */</em>
<a name="25" href="#25">25</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">abstract</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../com/totsp/gwittir/client/flow/AbstractHistoryManager.html">AbstractHistoryManager</a> implements <a href="../../../../../com/totsp/gwittir/client/flow/HistoryManager.html">HistoryManager</a> {
<a name="26" href="#26">26</a>      <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> Creates a new instance of <a href="../../../../../com/totsp/gwittir/client/flow/AbstractHistoryManager.html">AbstractHistoryManager</a> */</em>
<a name="27" href="#27">27</a>      <strong class="jxr_keyword">public</strong> <a href="../../../../../com/totsp/gwittir/client/flow/AbstractHistoryManager.html">AbstractHistoryManager</a>() {
<a name="28" href="#28">28</a>      }
<a name="29" href="#29">29</a>  
<a name="30" href="#30">30</a>      <strong class="jxr_keyword">public</strong> String generateHistoryToken(HashMap values) {
<a name="31" href="#31">31</a>          StringBuffer sb = <strong class="jxr_keyword">new</strong> StringBuffer();
<a name="32" href="#32">32</a>  
<a name="33" href="#33">33</a>          <strong class="jxr_keyword">for</strong>(Iterator it = values.entrySet().iterator(); it.hasNext();) {
<a name="34" href="#34">34</a>              Map.Entry entry = (Map.Entry) it.next();
<a name="35" href="#35">35</a>  
<a name="36" href="#36">36</a>              <strong class="jxr_keyword">if</strong>(entry.getValue() instanceof List) {
<a name="37" href="#37">37</a>                  <strong class="jxr_keyword">for</strong>(Iterator vit = ((List) entry.getValue()).iterator(); vit.hasNext();) {
<a name="38" href="#38">38</a>                      sb.append(entry.getKey());
<a name="39" href="#39">39</a>                      sb.append(<span class="jxr_string">"="</span>);
<a name="40" href="#40">40</a>                      sb.append(vit.next().toString().replaceAll(<span class="jxr_string">";"</span>, <span class="jxr_string">"@~"</span>));
<a name="41" href="#41">41</a>  
<a name="42" href="#42">42</a>                      <strong class="jxr_keyword">if</strong>(vit.hasNext()) {
<a name="43" href="#43">43</a>                          sb.append(<span class="jxr_string">";"</span>);
<a name="44" href="#44">44</a>                      }
<a name="45" href="#45">45</a>                  }
<a name="46" href="#46">46</a>              } <strong class="jxr_keyword">else</strong> {
<a name="47" href="#47">47</a>                  sb.append(entry.getKey());
<a name="48" href="#48">48</a>                  sb.append(<span class="jxr_string">"="</span>);
<a name="49" href="#49">49</a>                  sb.append(entry.getValue());
<a name="50" href="#50">50</a>              }
<a name="51" href="#51">51</a>  
<a name="52" href="#52">52</a>              <strong class="jxr_keyword">if</strong>(it.hasNext()) {
<a name="53" href="#53">53</a>                  sb.append(<span class="jxr_string">";"</span>);
<a name="54" href="#54">54</a>              }
<a name="55" href="#55">55</a>          }
<a name="56" href="#56">56</a>  
<a name="57" href="#57">57</a>          <strong class="jxr_keyword">return</strong> sb.toString();
<a name="58" href="#58">58</a>      }
<a name="59" href="#59">59</a>  
<a name="60" href="#60">60</a>      <strong class="jxr_keyword">public</strong> String getParameter(String key) {
<a name="61" href="#61">61</a>          HashMap values = parseHistoryToken(History.getToken());
<a name="62" href="#62">62</a>          Object value = values.get(key);
<a name="63" href="#63">63</a>  
<a name="64" href="#64">64</a>          <strong class="jxr_keyword">if</strong>(value == <strong class="jxr_keyword">null</strong>) {
<a name="65" href="#65">65</a>              <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>;
<a name="66" href="#66">66</a>          } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong>(value instanceof List) {
<a name="67" href="#67">67</a>              <strong class="jxr_keyword">return</strong> ((List) value).get(0).toString();
<a name="68" href="#68">68</a>          } <strong class="jxr_keyword">else</strong> {
<a name="69" href="#69">69</a>              <strong class="jxr_keyword">return</strong> value.toString();
<a name="70" href="#70">70</a>          }
<a name="71" href="#71">71</a>      }
<a name="72" href="#72">72</a>  
<a name="73" href="#73">73</a>      <strong class="jxr_keyword">public</strong> HashMap parseHistoryToken(String historyToken) {
<a name="74" href="#74">74</a>          StringTokenizer tok = <strong class="jxr_keyword">new</strong> StringTokenizer(historyToken, <span class="jxr_string">";"</span>);
<a name="75" href="#75">75</a>          HashMap map = <strong class="jxr_keyword">new</strong> HashMap();
<a name="76" href="#76">76</a>  
<a name="77" href="#77">77</a>          <strong class="jxr_keyword">while</strong>(tok.hasMoreTokens()) {
<a name="78" href="#78">78</a>              String token = tok.nextToken();
<a name="79" href="#79">79</a>              String key = token.substring(0, token.indexOf(<span class="jxr_string">"="</span>));
<a name="80" href="#80">80</a>              String value = token.substring(token.indexOf(<span class="jxr_string">"="</span>) + 1);
<a name="81" href="#81">81</a>              value = value.replaceAll(<span class="jxr_string">"@~"</span>, <span class="jxr_string">";"</span>);
<a name="82" href="#82">82</a>  
<a name="83" href="#83">83</a>              <strong class="jxr_keyword">if</strong>(map.containsKey(key)) {
<a name="84" href="#84">84</a>                  Object current = map.get(key);
<a name="85" href="#85">85</a>  
<a name="86" href="#86">86</a>                  <strong class="jxr_keyword">if</strong>(current instanceof List ) {
<a name="87" href="#87">87</a>                      ((List) current).add(value);
<a name="88" href="#88">88</a>                  } <strong class="jxr_keyword">else</strong> {
<a name="89" href="#89">89</a>                      ArrayList newVals = <strong class="jxr_keyword">new</strong> ArrayList();
<a name="90" href="#90">90</a>                      newVals.add(current);
<a name="91" href="#91">91</a>                      newVals.add(value);
<a name="92" href="#92">92</a>                      current = newVals;
<a name="93" href="#93">93</a>                  }
<a name="94" href="#94">94</a>  
<a name="95" href="#95">95</a>                  map.put(key, current);
<a name="96" href="#96">96</a>              } <strong class="jxr_keyword">else</strong> {
<a name="97" href="#97">97</a>                  map.put(key, value);
<a name="98" href="#98">98</a>              }
<a name="99" href="#99">99</a>          }
<a name="100" href="#100">100</a> 
<a name="101" href="#101">101</a>         <strong class="jxr_keyword">return</strong> map;
<a name="102" href="#102">102</a>     }
<a name="103" href="#103">103</a> 
<a name="104" href="#104">104</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setParameter(String key, String value) {
<a name="105" href="#105">105</a>         HashMap values = parseHistoryToken(History.getToken());
<a name="106" href="#106">106</a>         values.put(key, value);
<a name="107" href="#107">107</a>         History.newItem(generateHistoryToken(values));
<a name="108" href="#108">108</a>     }
<a name="109" href="#109">109</a> }
</pre>
<hr/><div id="footer">This page was automatically generated by <a href="http://maven.apache.org/">Maven</a></div></body>
</html>

